We can't assume a growth spurt is necessarily a bad thing for every skater. It hurt a lot of competitors in the past (and it has been detrimental for quite a few more recently, e.g. Liza T), but wouldn't a more developed body also be result in greater strength, more speed, more powerful jumps once the competitor has fully developed?

I realize this will be on a case-by-case basis, of course, and we can't predict what happens wholesale.